This is a big deal for IoT, and ubiquitous sensing. It's not there yet, but you can see that a few years down the road we might be able to power very simple sen

This is a big deal for IoT, and ubiquitous sensing. It's not there yet, but you can see that a few years down the road we might be able to power very simple sensors via existing wireless networks (for free). That will allow us to put sensors on everything.